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udp: advertise ipv6 udp support for msghdr::ubuf_info

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Mark udp ipv6 as supporting msghdr::ubuf_info. In the original commit
SOCK_SUPPORT_ZC was supposed to be set by a udp_init_sock() call from
udp6_init_sock(), but
d38afeec26 ("tcp/udp: Call inet6_destroy_sock() in IPv6 ...")
removed it and so ipv6 udp misses the flag.

Cc: <stable@vger.kernel.org> # 6.0
Fixes: e993ffe3da ("net: flag sockets supporting msghdr originated zerocopy")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Pavel Begunkov 2022-10-27 00:25:56 +01:00 committed by Jakub Kicinski
parent 1208b93dd9
commit 8f279fb00b
1 changed files with 1 additions and 0 deletions
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1
net/ipv6/udp.c
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@ -66,6 +66,7 @@ int udpv6_init_sock(struct sock *sk)
{
skb_queue_head_init(&udp_sk(sk)->reader_queue);
sk->sk_destruct = udpv6_destruct_sock;
set_bit(SOCK_SUPPORT_ZC, &sk->sk_socket->flags);
return 0;
}